catspeed-cc/openwrt
2
1
Fork 0
Code Issues Pull Requests Activity

realtek: pcs: add generic mode-to-pll-speed mapper

Browse Source 
Add a mapper function to infer the to-be-selected PLL speed from the
desired SerDes hardware mode. This avoids having similar logic in each
CMU implementation.

Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/22198
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Jonas Jelonek 2026-02-24 11:58:14 +00:00 committed by Hauke Mehrtens
parent c413569330
commit 130d8d6b51
1 changed files with 31 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
View File

@ -516,6 +516,34 @@ static void rtpcs_generic_sds_restart_autoneg(struct rtpcs_serdes *sds)
rtpcs_sds_write_field(sds, &sds->regs->an_restart, 0x1);
}
static int rtpcs_sds_select_pll_speed(enum rtpcs_sds_mode hw_mode, enum rtpcs_sds_pll_speed *speed)
{
switch (hw_mode) {
case RTPCS_SDS_MODE_1000BASEX:
case RTPCS_SDS_MODE_SGMII:
case RTPCS_SDS_MODE_QSGMII:
*speed = RTPCS_SDS_PLL_SPD_1000;
break;
case RTPCS_SDS_MODE_2500BASEX:
*speed = RTPCS_SDS_PLL_SPD_2500;
break;
case RTPCS_SDS_MODE_10GBASER:
case RTPCS_SDS_MODE_XSGMII:
case RTPCS_SDS_MODE_USXGMII_10GSXGMII:
case RTPCS_SDS_MODE_USXGMII_10GDXGMII:
case RTPCS_SDS_MODE_USXGMII_10GQXGMII:
case RTPCS_SDS_MODE_USXGMII_5GSXGMII:
case RTPCS_SDS_MODE_USXGMII_5GDXGMII:
case RTPCS_SDS_MODE_USXGMII_2_5GSXGMII:
*speed = RTPCS_SDS_PLL_SPD_10000;
break;
default:
return -ENOTSUPP;
}
return 0;
}
/* Variant-specific functions */
/* RTL838X */
@ -1449,15 +1477,9 @@ static int rtpcs_930x_sds_config_pll(struct rtpcs_serdes *sds,
rtpcs_930x_sds_get_pll_data(nb_sds, neighbor_pll, &neighbor_speed);
if ((hw_mode == RTPCS_SDS_MODE_1000BASEX) ||
(hw_mode == RTPCS_SDS_MODE_SGMII))
speed = RTPCS_SDS_PLL_SPD_1000;
else if (hw_mode == RTPCS_SDS_MODE_2500BASEX)
speed = RTPCS_SDS_PLL_SPD_2500;
else if (hw_mode == RTPCS_SDS_MODE_10GBASER)
speed = RTPCS_SDS_PLL_SPD_10000;
else
return -ENOTSUPP;
ret = rtpcs_sds_select_pll_speed(hw_mode, &speed);
if (ret < 0)
return ret;
if (!neighbor_mode)
pll = speed == RTPCS_SDS_PLL_SPD_10000 ? RTPCS_SDS_PLL_TYPE_LC